Index: uspace/lib/libc/generic/adt/hash_table.c
===================================================================
--- uspace/lib/libc/generic/adt/hash_table.c	(revision 3698e4420e4bdd79a3251c212fbc1886ecf45436)
+++ uspace/lib/libc/generic/adt/hash_table.c	(revision 0055cfda855ba8e5cf246f911b748a2fae9d6793)
@@ -193,4 +193,24 @@
 }
 
+/** Apply fucntion to all items in hash table.
+ *
+ * @param h		Hash table.
+ * @param f		Function to be applied.
+ * @param arg		Argument to be passed to the function.
+ */
+void
+hash_table_apply(hash_table_t *h, void (*f)(link_t *, void *), void *arg)
+{
+	hash_index_t bucket;
+	link_t *cur;
+
+	for (bucket = 0; bucket < h->entries; bucket++) {
+		for (cur = h->entry[bucket].next; cur != &h->entry[bucket];
+		    cur = cur->next) {
+			f(cur, arg);
+		}
+	}
+}
+
 /** @}
  */
Index: uspace/lib/libc/generic/vfs/vfs.c
===================================================================
--- uspace/lib/libc/generic/vfs/vfs.c	(revision 3698e4420e4bdd79a3251c212fbc1886ecf45436)
+++ uspace/lib/libc/generic/vfs/vfs.c	(revision 0055cfda855ba8e5cf246f911b748a2fae9d6793)
@@ -197,4 +197,42 @@
 }
 
+int unmount(const char *mp)
+{
+	ipcarg_t rc;
+	ipcarg_t rc_orig;
+	aid_t req;
+	size_t mpa_size;
+	char *mpa;
+	
+	mpa = absolutize(mp, &mpa_size);
+	if (!mpa)
+		return ENOMEM;
+	
+	futex_down(&vfs_phone_futex);
+	async_serialize_start();
+	vfs_connect();
+	
+	req = async_send_0(vfs_phone, VFS_IN_UNMOUNT, NULL);
+	rc = async_data_write_start(vfs_phone, (void *) mpa, mpa_size);
+	if (rc != EOK) {
+		async_wait_for(req, &rc_orig);
+		async_serialize_end();
+		futex_up(&vfs_phone_futex);
+		free(mpa);
+		if (rc_orig == EOK)
+			return (int) rc;
+		else
+			return (int) rc_orig;
+	}
+	
+
+	async_wait_for(req, &rc);
+	async_serialize_end();
+	futex_up(&vfs_phone_futex);
+	free(mpa);
+	
+	return (int) rc;
+}
+
 static int open_internal(const char *abs, size_t abs_size, int lflag, int oflag)
 {